Invention Application
- Patent Title: FAST CHARGING BATTERIES AT LOW TEMPERATURES WITH BATTERY PACK PREHEATING
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Application No.: US17675112Application Date: 2022-02-18
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Publication No.: US20220271352A1Publication Date: 2022-08-25
- Inventor: Said Al-Hallaj , Mohamad M. SALAMEH , Samuel T. PLUNKETT , Chengxiu CHEN , Stoyan STOYANOV
- Applicant: ALL CELL TECHNOLOGIES, LLC.
- Applicant Address: US IL Broadview
- Assignee: ALL CELL TECHNOLOGIES, LLC.
- Current Assignee: ALL CELL TECHNOLOGIES, LLC.
- Current Assignee Address: US IL Broadview
- Main IPC: H01M10/44
- IPC: H01M10/44 ; H01M10/615 ; H01M10/6571 ; H01M10/48

Abstract:
A method and apparatus for charging a battery pack including a plurality of electrochemical cells distributed within a thermal management composite matrix, including a phase change material. The method operates upon determining that a battery pack temperature and/or voltage measurement is below a predetermined minimum threshold. The pack temperature and/or the voltage measurement is raised to the predetermined minimum threshold, such as by applying a low current rate, and then the charging rate is increased upon reaching the predetermined minimum threshold. The increased charging rate is further selected based upon a thermal state of charge of the thermal management composite matrix.
Public/Granted literature
- US11749847B2 Fast charging batteries at low temperatures with battery pack preheating Public/Granted day:2023-09-05
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